Expanded Form
Word Form
Number Form
Adding and Subtracting
Rounding
100
Write 45.2 in expanded form.

(4 x 10) + (5 x 1) + (2 x 0.1)

100

Write 32.1 in word form.

thirty-two and one tenth

100

four and eight tenths

4.8

100

45.7 + 21.4

67.1

100

Round 25.6 to the nearest whole.

26

200

Write 3.72 in expanded form.

(3 x 1) + (7 x 0.1) + (2 x 0.01)

200

Write 5.91 in word form.

five and ninety-one hundredths

200

twenty-six and sixty-two hundredths

26.62

200

72.9 + 9.3

82.2

200

Round 7.81 to the nearest tenth.

7.8

300

Write 123.45 in expanded form.

(1 x 100) + (2 x 10) + (4 x 0.1) + (5 x 0.01)

300

Write 88.88 in word form.

eighty-eight and eighty-eight hundredths

300

nine thousand fifty-five and seven tenths

9,055.7

300

35.3 - 17.5

17.8

300

Round 230.5 to the nearest whole.

231

400

Write 2,120.33 in expanded form.

(2 x 1,000) + (1 x 100) + (2 x 10) + (3 x 0.1) + (3 x 0.01)

400

Write 2,405.9 in word form.

two thousand four hundred five and nine tenths

400

two hundred forty-seven and eighty-one hundredths

247.81

400

537.6 - 92.14

445.46

400

Round 3,216.49 to the nearest tenth.

3.216.5

500

Write 21.365 in expanded form.

(2 x 10) + (1 x 1) + (3 x 0.1) + (6 x 0.01) + (5 x 0.001)

500

Write 310.789 in word form.

three hundred ten and seven hundred eighty-nine thousandths

500

ninety-nine thousand nine hundred ninety-nine and ninety-nine hundredths

99,999.99

500

1,207.36 - 452.18

755.18

500

Round 45.189 to the nearest hundredth.

45.19

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